1) The advantage is that it can be air bend side bend in real time can not be bent, such as square and rectangular tube top / side synchronous bending and finishing. Air bend can also bend R <0.2t inside corners without wall fracture. Shortcoming 2) air bend is in the upper / time synchronization air bend side, since the upper and lower rollers while generating pressure forming force easily exceed the critical point, causing instability concave edge, Hefei galvanized square tube manufacturers, and also affect the stable operation and molding quality. This is also the moment when pipe and tube side air bend forming different characteristics. RHS name suggests, it is a kind of square shape of the tube, a variety of material substance can form a square tube, it is the medium in, what to use, what to use in place, most of the pipe to steel pipe for the majority, q235b galvanized square pipe manufacturers, after unpacking, smooth, curl, tube welding form, and then cut to the desired length and then rolled into the square from the round tube. Typically 50 per pack square tube in the majority of large-sized spot in 0.8-1.5--500 * 10 * 10 * 500 * 10-25, the pipe structure use is divided into square tube, galvanized square tube manufacturers products, decorative square tube, square tube construction, machinery and square tubes. q235 galvanized square tube manufacturers, exhibition of Commerce Bo, galvanized square tube manufacturers Hefei Hefei exhibition by Bo Trading Company. Hefei Show Bo Trading Company (www.hfzhanbo.com) (www.hfzhanbo.com) is Hefei, steel leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. In the exhibition of Commerce Bo leadership with the staff warmly welcome all inquiries negotiations to create the exhibition of Commerce Bo better future.